Life (root) » Plantae (plants) » Tracheophyta (Vascular Plants) » Angiospermae (Flowering Plants) » Liliopsida (Monocots) » Poales (grasses, sedges, and allies) » Poaceae (grasses) » Pooideae » Triticeae » Hordeum (Barley and Allies) » Hordeum pusillum (little barley)